Lazy Class Reference

#include <opt_explain_format.h>

Inheritance diagram for Lazy:

Collaboration diagram for Lazy:

Public Member Functions
virtual bool	eval (String *ret)=0

Additional Inherited Members
Static Public Member Functions inherited from Sql_alloc
static void *	operator new (size_t size) throw ()
static void *	operator new[] (size_t size) throw ()
static void *	operator new[] (size_t size, MEM_ROOT *mem_root) throw ()
static void *	operator new (size_t size, MEM_ROOT *mem_root) throw ()
static void	operator delete (void *ptr, size_t size)
static void	operator delete (void *ptr, MEM_ROOT *mem_root)
static void	operator delete[] (void *ptr, MEM_ROOT *mem_root)
static void	operator delete[] (void *ptr, size_t size)

Detailed Description

Emulate lazy computation

Definition at line 110 of file opt_explain_format.h.

Member Function Documentation

virtual bool Lazy::eval ( String *  ret )

pure virtual

Deferred evaluation of encapsulated expression

Parameters

[out]

ret

Return string value

Return values

false	Success
true	Failure (OOM)

Implemented in Explain::Lazy_condition.

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The documentation for this class was generated from the following file:

• sql/opt_explain_format.h